391330498

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 673812216

約数和(自身を除く): 282481718

約数列:

[1, 2, 13, 19, 26, 38, 173, 241, 247, 346, 361, 482, 494, 722, 2249, 3133, 3287, 4498, 4579, 4693, 6266, 6574, 9158, 9386, 41693, 42731, 59527, 62453, 83386, 85462, 87001, 119054, 124906, 174002, 542009, 792167, 811889, 1084018, 1131013, 1584334, 1623778, 2262026, 10298171, 15051173, 20596342, 30102346, 195665249, 391330498]

約数ペア:

[(1, 391330498), (2, 195665249), (13, 30102346), (19, 20596342), (26, 15051173), (38, 10298171), (173, 2262026), (241, 1623778), (247, 1584334), (346, 1131013), (361, 1084018), (482, 811889), (494, 792167), (722, 542009), (2249, 174002), (3133, 124906), (3287, 119054), (4498, 87001), (4579, 85462), (4693, 83386), (6266, 62453), (6574, 59527), (9158, 42731), (9386, 41693)]